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The six
different functions performed by soft lens care systems are:
Daily
Cleaning to remove debris
accumulated and adhering loosely to the lens. This debris, if not
removed, can eventually make the lenses uncomfortable, interfere with
vision and reduce the ability of the disinfecting solution to kill
potentially harmful microorganisms. In addition, the cleaning
solutions perform the first step in the disinfection process.
Disinfecting to kill growing
forms of microorganisms (bacteria, fungi, and viruses) on the lenses.
Rinsing and Storing requires
the use of an ophthalmic isotonic saline solution or may be performed
with some types of disinfectant solution. Most saline solutions are
not suitable for storage of lenses, as they do not contain anything to
kill or prevent the growth of microorganisms.
Comfort or Lubricating Drops
are used to provide refreshment for dry eyes, in conditions of low
humidity or for added comfort near the end of the wearing day.
Protein Removal removes
stubborn protein deposits and, with daily cleaning and disinfection,
helps restore a clean, fresh contact lens surface. Protein removal is
generally not required for planned replacement lenses, which are
replaced before the deposits can cause difficulties.
Rigid Gas
Permeable (RGP) Contact Lens Care Systems
RGP lenses must be cleaned and disinfected for safe and comfortable
wear.
The lens
care system recommended will include a group of products designed to
work together to clean, rinse, disinfect and remove protein deposits
and to re-wet your eyes if they become dry during contact lens wear.
It is
important to use only those systems designed specifically for rigid
gas permeable lenses. They are formulated with disinfectants and
preservatives proven to work best with the material of which your
lenses are made.
If you
wish to change your lens care regimen or to try a new lens care
product, it is best to discuss this first, even if only by telephone,
to ensure that you select products that are compatible with your eyes
and will work well.
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